AIT wiring question
 

Okay, so I have the AIT sensor kit and bung from DIY.

I'm looking at the instructions for installing things and it describes two wires going into the AFM connector, but I seem to have only one that came in the kit. Also, since the sensor wires are not connected on either end I'm not sure which wires go where.

huh?
You said AFM so I'm assuming you have a 90-93. This is pulled from Reverents instructions for installing a MS.

Just splice the wires, or use a spade connector, and extend those two wires to the wires on the end of the IAT pigtail (which is a red and a black I think). No polarity so it doesn't matter which to which.

Hope that helps.

No, the point is that I have one wire in the kit and I seem to need two. There is no IAT pigtail with what I got. I got the IAT, the connector without any wires attached, and one wire. It seems like I need two wires coming off the IAT.

Cut the wire in half and you'll have 2.
The sensor takes 2 wires, polarity isn't important so no need to worry about both being the same color.

Could work, I might have to get some more wire to get it up to the sensor location.

The other problem I have is how does this work?

https://www.miataturbo.net/attachmen...ine=1384116268

The connector that goes into the sensor itself is obviously not hooked up to any wires. How does this come together? Those three tabs obviously came with the kit so I'm assuming they go into the connector, not sure exactly how though.

Attach wire to pin, insert pin/wire combo into plastic connector.

^yup. Then use crimp style butt connectors and some extra wire to extend it over to the AFM area.

Where did you mount the temp sensor that the wire in the picture won't reach ?

https://www.miataturbo.net/attachmen...ine=1384117044

I'm assuming one removes the back of the connector like I have in the pic, sticks the wires through the green plastic portion and then attaches them to the pin that then goes into the connector with the long flat side first?

I'm assuming that I crimp some portion of the metal piece, but I'm not sure which. Or do I just run the wire into the hole on the end?

In the end tank of the intercooler. I haven't measured the wire, but I'm assuming if I cut it in half I can make it over to the AFM connector. If not I can always get more wire.

You crimp the side that looks crimpable, the other end is a pin that slides into the sensor itself.. c'mon man.

Damn, that's a bit far.
Keep that wire as short as possible.

I'm sorry! It did seem obvious, but damned if I haven't made mistakes before. It's also not exactly plug and play. The orientation of the thing and how it is supposed to go in is not obvious. Is there any necessity for it to go in a certain way?

Everything I got on here was saying the end tank is the best place for the AIT.

As long as the pins make good contact with the sensor when its plugged in, everything is fine.

The end tank of the intercooler is a good spot for the IAT.

Those crimp pins don't look like the correct ones for that connector (see if the pins actually mate up with the pins on the sensor). I believe the pins should be female.

Also, for this particular connector (GM IAT), you put the wires through the rubber seal, then through the connector. Then you crimp on the pins and pull the wires back. The pins snap in from the front of the connector, not the rear.

--Ferdi

This is kinda what I was asking, it doesn't seem obvious how the damned thing is supposed to work.

It doesn't look like the connectors really fit very well either way. I ended up crimping the wires on and putting them in through the back of the connector (after putting the wires through the rubber) with the tab part sticking into the front. I have no clue if this is right or not.

I kinda wish the kit had come with a pigtail connector.

The connector on the AIT sensor itself just has a couple of pins sticking out.

https://www.miataturbo.net/attachmen...ine=1384125496

That is what the pins should look like.

--Ferdi

Well, it's all DIYAutotune what I've gotten so dunno.